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http://dx.doi.org/10.7742/jksr.2020.14.4.447

A Study on the Measurement of Half-life for the 179Re Isotope Produced by a 100 MeV Proton Nuclear Reaction  

Lee, Samyol (Department of Radiological Science, Dongseo University Center for Radiological Environment & Health Science, Dongseo University)
Publication Information
Journal of the Korean Society of Radiology / v.14, no.4, 2020 , pp. 447-453 More about this Journal
Abstract
This study accurately measured the half-life of the 179Re radioactive isotope using the 100 MeV proton and high-purity HPGe gamma ray measurement system generated from a high-energy proton linear accelerator at the Korea Atomic Energy Research Institute. The result obtained is 19.64 ± 0.26 min. Compared with the past results of the half-life of the 179Re radioisotope known to date, the results of B. Harmatz published in 1960 and B. J. Meijer published in 1975 measured the median value higher than the results obtained in this study. In the case of K. J. Hofstetter, published in 1966, a very large error is also characteristic. This result showed a tendency that the center value was very consistent with the result of this study. The results of Coral M. Baglin's 19.5 min published in 2009 are very consistent with the error range. The obtained measured result was compared with the result of ENSDF (Evaluated Nuclear Structure Data File). Through this study, more reliable values were measured for the results of the half-life of the 179Re, which was previously incorrect, and the validity of the recently published results of Coral M. Baglin was confirmed.
Keywords
$^{179}Re$; Half-life; Proton energy; Nuclear reaction; Gamma-ray spectrum; Proton beam; KAERI;
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